Add "total amount" to CLINS

- includes migration for change to model

alembic/versions/f03333c42bdb_add_total_amount_to_clins.py

@@ -0,0 +1,29 @@
+"""Add total amount to CLINs
+
+Revision ID: f03333c42bdb
+Revises: 4a3122ffe898
+Create Date: 2019-09-04 15:35:39.446486
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'f03333c42bdb' # pragma: allowlist secret
+down_revision = '30ea1cb20807' # pragma: allowlist secret
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('clins', sa.Column('total_amount', sa.Numeric(scale=2), nullable=True))
+    op.execute("UPDATE clins SET total_amount = 0")
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('clins', 'total_amount')
+    # ### end Alembic commands ###